I've been there too, but sometimes there is just some feeling that you will need to add more from what you have been purchasing at a lower price via DCA. This kinda similar to FOMO and it is a feeling of greed that we need to take advantage to maximize our profit from the current price surge.
Some may even think of getting a loan to try and add something to their holdings especially in times like this. Those who has been here for quite some time already know what kind of price we are anticipating in a few months away from the bitcoin halving and the post halving pump.
But then again, those who have been accumulating from the start will not totally going to be affected by FOMO.